Idem 15.0.1

Idem 15.0.1 introduces ‘old_state’ and ‘new_state’ to state returns for the ‘resource’ contract. It is no longer required to return ‘changes’ to implement ‘resource’ contract for Idem states. Idem generates ‘changes’ automatically based on ‘old_state’ and ‘new_state’ in state returns.

Note: It will be required to return ‘old_state’ and ‘new_state’ for ‘resource’ contract in the future release of Idem.